Can it be configured such that if I set "If last price goes down 2% than.." (without trailing checkbox), and it sold all my coins, then if that executed, I want it to buy back at a lower price (i.e. within a certain period of time [this might be optional] and it starts to go back up by a fixed/percentage amount)? How would I go about doing that?

This is basically to sell all my coins while it is dropping and buying back when it has reached it lowest. Idea here is to gain more coins.

Also, because it usually drop down fast such that even if we place an order, it might still be above what others are paying, so is it possible to configure it to sell at what others are selling AND also take off $x amount to guarantee a sell?

Note: I have not use any trading programs before.